Standard macroeconomic models are represented in a wholly new causal manner using flowgraphs. This mode of analysis is unique to this book within the realm of economics. It brings with it new insights and analytical potential not available elsewhere. The simple graphical methods are carefully explained in an introductory chapter and applied to well known models such as IS-LM, AS-AD and open economy (Mundell-Fleming) models. Macroeconomic models with varying price levels and inflation, including rational expectations models, are also treated in the new representation. The book aims to equip readers with a simple but powerful analytical tool to complement the standard methods of analysis presented in intermediate level undergraduate textbooks. The author's website (geoffwyatt.com) has further details and includes a facility for creating, manipulating and solving flowgraph models on a computer screen.